Comparative study in fracture strength of zirconia cores fabricated with three different CAD/CAM systems / 대한치과보철학회지
The Journal of Korean Academy of Prosthodontics
;
: 22-30, 2008.
Article
in Korean
| WPRIM
| ID: wpr-72283
ABSTRACT
PURPOSE:
The purpose of this study is to compare three different CAD/CAM systems through the fracture strength of zirconia core and to evaluate the clinical availability of each system. MATERIAL ANDMETHODS:
The following three groups of 30 maxillary mesial incisor core for all-ceramics(each group 10) were fabricated as follows group 1. Adens(R) CAD/CAM system, group 2. Cerasys(R) CAD/CAM system, group 3. 3M LAVA(R)CAD/CAM system. All specimens were manufactured consistently thickness 0.5mm and relief 40 micrometer. Specimens were subjected to compressive loading on the lingual area by Z250/SN5S(R). Each group's mean and standard deviation were calculated and Kruskal Waillis test, Wilcoxon Rank Sum test were utilized to find out the relationship among the groups.RESULTS:
The results were as follows 1. The mean fracture strength of Adens(R) system was 615.89+/-156.1N, the Cerasys(R) system was 863.98+/-151.5N, and the 3M LAVA(R) system was 1143.1+/-286.6N. 2. The fracture strength of the systems showed the significant statistical differences in order of 3M LAVA(R) system, Cerasys(R) system, Adens(R) system.CONCLUSION:
In this study, in spite of the differences among the groups, every group showed clinically useful results. It is necessary to study further clinical experiments on a long term basis.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Zirconium
/
Incisor
Language:
Korean
Journal:
The Journal of Korean Academy of Prosthodontics
Year:
2008
Type:
Article
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